<s>
The	O
RAD5500	B-General_Concept
is	O
a	O
radiation-hardened	O
64-bit	O
processor	O
core	O
design	O
created	O
by	O
BAE	O
Systems	O
Electronics	O
,	O
Intelligence	O
&	O
Support	O
based	O
on	O
the	O
PowerPC	B-General_Concept
e5500	I-General_Concept
designed	O
by	O
IBM	O
and	O
Freescale	O
Semiconductor	O
.	O
</s>
<s>
Successor	O
of	O
the	O
RAD750	B-Device
,	O
the	O
RAD5500	B-General_Concept
processor	O
platform	O
is	O
for	O
use	O
in	O
high	O
radiation	O
environments	O
experienced	O
on	O
board	O
satellites	O
and	O
spacecraft	O
.	O
</s>
<s>
The	O
RAD5500	B-General_Concept
core	O
supports	O
VPX	B-Architecture
high	O
speed	O
connectors	O
,	O
DDR2/DDR3	O
memory	O
,	O
serialize/deserialize	O
(	O
SerDes	O
)	O
,	O
and	O
SpaceWire	B-Architecture
IO	B-General_Concept
.	O
</s>
<s>
The	O
RAD5500	B-General_Concept
core	O
is	O
based	O
on	O
those	O
of	O
the	O
Freescale	O
Semiconductor	O
e5500-based	O
QorIQ	B-General_Concept
system-on-chip	B-Architecture
.	O
</s>
<s>
The	O
RAD5510	O
,	O
RAD5515	O
,	O
RAD5545	O
,	O
and	O
RADSPEED-HB	O
(	O
host	O
bridge	O
)	O
are	O
four	O
system	B-Architecture
on	I-Architecture
a	I-Architecture
chip	I-Architecture
processors	O
implemented	O
with	O
RAD5500	B-General_Concept
cores	O
produced	O
with	O
45nm	O
SOI	B-Algorithm
technology	O
from	O
the	O
IBM	O
Trusted	O
Foundry	O
.	O
</s>
<s>
The	O
RAD5510	O
and	O
RAD5515	O
processors	O
employ	O
a	O
single	O
RAD5500	B-General_Concept
core	O
and	O
are	O
intended	O
for	O
medium	O
processing	O
capability	O
in	O
environments	O
that	O
require	O
low	O
power	O
consumption	O
(	O
11.5	O
and	O
13.7	O
watts	O
respectively	O
)	O
.	O
</s>
<s>
The	O
RAD5545	O
processor	O
employs	O
four	O
RAD5500	B-General_Concept
cores	O
,	O
achieving	O
performance	O
characteristics	O
of	O
up	O
to	O
5.6	O
giga-operations	O
per	O
second	O
(	O
GOPS	O
)	O
and	O
over	O
3.7	O
GFLOPS	O
.	O
</s>
<s>
(	O
Note	O
that	O
RADSPEED	O
DSPs	O
are	O
entirely	O
different	O
processors	O
that	O
are	O
specialized	O
for	O
digital	B-General_Concept
signal	I-General_Concept
processing	I-General_Concept
and	O
are	O
not	O
to	O
be	O
confused	O
with	O
the	O
RADSPEED-HB	O
,	O
which	O
serves	O
as	O
a	O
host	O
bridge	O
.	O
)	O
</s>
<s>
The	O
RAD5545	O
SpaceVPX	O
single-board	B-Device
computer	I-Device
is	O
for	O
use	O
in	O
the	O
harsh	O
environmental	O
conditions	O
of	O
outer	O
space	O
;	O
designed	O
for	O
operating	O
in	O
temperatures	O
between	O
−55°C	O
and	O
125°C	O
and	O
radiation-hardened	O
for	O
a	O
total	O
ionizing	O
dose	O
of	O
100	O
krad	O
(	O
for	O
the	O
silicon	O
chips	O
)	O
.	O
</s>
<s>
The	O
RAD5545	O
SpaceVPX	O
single-board	B-Device
computer	I-Device
is	O
produced	O
BAE	O
Systems	O
's	O
facility	O
in	O
Manassas	O
,	O
Virginia	O
,	O
which	O
is	O
a	O
U.S.	O
Department	O
of	O
Defense	O
Category	O
1A	O
Microelectronics	O
Trusted	O
Source	O
.	O
</s>
